A method of batch processing a cavity structure

Abstract

The present application relates to the technical field of machining process and device, and particularly relates to a method for batch processing cavity structure parts. The method comprises the following steps: taking the upper and lower planes of a workpiece to be processed as the upper and lower planes of a cavity blank, cutting the workpiece to be processed according to cutting parameters, and cutting to form at least one cavity blank with inner and outer contours; based on the size structure parameters required by the plane grinding process, simultaneously performing plane grinding on the upper and lower planes of the at least one cavity blank; based on the size structure parameters required by the inner hole grinding process, performing inner hole grinding on the cavity blank; and based on the finished product processing structure size parameters of the cavity structure part, simultaneously performing finished product processing on the at least one cavity blank. The present application has the beneficial effect of batch processing of cavity structures, high processing efficiency and low processing cost.

Description

Technical Field

[0001] This invention relates to the field of machining technology and equipment, and more specifically, to a method for batch processing cavity structural components. Background Technology

[0002] Cavity structural components are essential parts of inertial devices such as gyroscopes, and their machining accuracy and efficiency play a crucial role in the production of these devices. Currently, cavity structural components are mainly machined individually using CNC machine tools, resulting in low efficiency and high cost. Therefore, there is a need to propose a method for machining cavity structural components with high efficiency, low cost, and high precision. Summary of the Invention

[0003] To address the problems in the background art, the present invention provides a method for batch processing cavity structural components, solving the defects of low processing efficiency and high processing cost in the prior art.

[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows:

[0005] A method for batch processing cavity structural components includes the following steps:

[0006] Using the upper and lower planes of the workpiece to be processed as the upper and lower planes of the cavity blank, the workpiece to be processed is cut according to the cutting parameters to form a cavity blank with inner and outer contours at least more than 1 in number;

[0007] Based on the dimensional and structural parameters required by the planar grinding process, the upper and lower planes of the cavity blanks, which have a quantity of at least more than 1, are subjected to planar grinding.

[0008] Based on the dimensional and structural parameters required by the internal hole grinding process, the cavity blank is subjected to internal hole grinding.

[0009] Based on the finished product processing structural dimension parameters of cavity structural components, finished product processing is performed on cavity blanks with a quantity of at least more than 1.

[0010] Furthermore, the material for the workpiece to be processed is selected based on the height and outer contour dimensions of the cavity structure.

[0011] Furthermore, the cutting parameters include: the inner and outer contour dimensions of the cavity blank, and the number of cavity blanks.

[0012] Furthermore, the planar grinding process requires dimensional structural parameters including: the height of the cavity structure, and the machining accuracy, roughness, flatness, and parallelism parameters of the cavity structure.

[0013] Furthermore, the internal hole grinding process requires dimensional and structural parameters including: the internal hole and chamfer dimensions of the cavity structure, as well as the roundness and surface roughness of the cavity structure.

[0014] Furthermore, the finished product processing structure dimensional parameters include: the dimensional parameters of blind holes and through holes in the cavity structure component, excluding the inner cavity.

[0015] Furthermore, the step of using the upper and lower planes of the workpiece to be processed as the upper and lower planes of the cavity blank, and cutting the workpiece according to the cutting parameters to form a cavity blank with an inner and outer contour of at least more than 1 includes the step of laying the workpiece flat on the worktable.

[0016] Furthermore, before the step of performing planar grinding on the upper and lower planes of at least one cavity blank based on the required dimensional and structural parameters of the planar grinding process, the step includes: pushing at least one cavity blank onto the same worktable.

[0017] Furthermore, the step of processing at least one cavity blank part into a finished product based on the finished product processing structural dimension parameters of the cavity structural component includes the step of loading at least one cavity blank part onto the same tooling shaft before the step of processing at least one cavity blank part into a finished product.

[0018] Furthermore, the finished product processing structure dimensional parameters include: the external structure of the cavity structure is prismatic, and there is a cylindrical through-hole cavity with the center line of the prism as the axis between the upper and lower bottom surfaces; a blind hole is provided between each side wall and the cavity, the upper bottom surface of the blind hole penetrates the side wall, and the lower bottom surface does not penetrate the cavity, and a columnar connecting hole is provided between two adjacent blind holes.

[0019] The beneficial effects of this invention are: high processing efficiency and low processing cost for batch processing of cavity structures. Attached Figure Description

[0020] To facilitate understanding of the invention, it will be described in more detail with reference to the specific embodiments shown in the accompanying drawings. These drawings depict only typical embodiments of the invention and should not be considered as limiting the scope of protection of the invention.

[0021] Figure 1 This is a flowchart illustrating one embodiment of the method for batch processing cavity structural components according to the present invention.

[0022] Figure 2 This is a schematic diagram illustrating the relevant steps performed by a waterjet cutting CNC machine in one embodiment of the present invention.

[0023] Figure 3 for Figure 2 A schematic diagram of a certain working state.

[0024] Figure 4 This is a schematic diagram illustrating the relevant steps performed by a double-sided grinding machine in one embodiment of the present invention.

[0025] Figure 5 for Figure 4 A schematic diagram of a certain working state.

[0026] Figure 6 This is a schematic diagram illustrating the relevant steps performed by a CNC internal grinding machine in one embodiment of the present invention.

[0027] Figure 7 for Figure 6 A schematic diagram of a certain working state.

[0028] Figure 8 This is a schematic diagram illustrating the relevant steps performed by a four-axis CNC milling machine in one embodiment of the present invention.

[0029] Figure 9 for Figure 8 A schematic diagram of a certain working state.

[0030] Figure 10 This is a schematic diagram of a four-axis CNC milling machine clamping a cavity blank in one embodiment of the present invention.

[0031] Figure 11 This is a perspective view of a cavity structure component manufactured according to a certain embodiment of the present invention.

[0032] Figure 12 This is a schematic diagram of the cavity structure component processed according to a certain embodiment of the present invention. Detailed Implementation

[0033] The embodiments of the present invention are described below with reference to the accompanying drawings to enable those skilled in the art to better understand and implement the present invention. However, the listed embodiments are not intended to limit the present invention. In the absence of conflict, the following embodiments and the technical features in the embodiments can be combined with each other, wherein the same components are indicated by the same reference numerals.

[0034] A preferred embodiment of the method for batch processing cavity structural components of the present invention will be described below. For example... Figure 1 As shown, it includes:

[0035] Step S1: Cut the workpiece into its outer shape. Preferably, select the workpiece according to the material selection parameters, and use the upper and lower planes of the workpiece as the upper and lower planes of the cavity blank. Cut the workpiece according to the cutting parameters to form a cavity blank with inner and outer contours in a quantity of at least more than 1.

[0036] The material selection parameters include: the height and outer contour dimensions of the cavity structure. The cutting parameters include: the inner and outer contour dimensions of the cavity blank, the number of cavity blanks, and the allowance parameters for reserving sufficient machining allowance for subsequent processing steps. Preferably, the inner and outer contour dimensions are the inner and outer circle contour dimensions of the cavity blank.

[0037] Step S1 is preferably performed using a water jet cutting CNC machine. For example... Figure 2-3 As shown, the corresponding waterjet cutting CNC machine mainly consists of a high-pressure pump, a CNC machining platform, a jet cutting head, a sand supply system, and a cooling system; it utilizes high-pressure water jets for cold cutting; and it has three linear motion axes, namely X / Y / Z axes. Before using the waterjet cutting CNC machine to cut the workpiece, it needs to be clamped. The clamping method is as follows: the workpiece is laid flat on the worktable, and the hydraulic devices on both sides clamp the workpiece according to the preset requirements.

[0038] Step S2: Based on the dimensional and structural parameters required by the planar grinding process, simultaneously perform planar grinding on the upper and lower planes of at least one cavity blank. Preferably, the dimensional and structural parameters required by the planar grinding process include: the height dimension of the cavity structure, and the machining accuracy, roughness, flatness, and parallelism parameters of the cavity structure. The parallelism parameter includes: the parallelism of the upper and lower planes of the cavity structure.

[0039] Step S2 is preferably performed using a double-sided grinding machine. For example... Figure 4-5 As shown, the corresponding double-sided grinding machine includes two grinding discs, a rotary wheel, four motors, a sun gear, a finishing machine, etc. It is mainly used for double-sided grinding of crystals or other mechanical parts with parallel surfaces, and is particularly suitable for processing thin and brittle materials. The upper and lower grinding discs rotate in opposite directions, and the blank workpiece undergoes a planetary motion of revolution and rotation within the carrier. This results in low grinding resistance, no damage to the workpiece, and high production efficiency with uniform grinding on both sides. Before grinding the upper and lower surfaces of the blank workpiece, it must first be clamped. The blank workpiece is then placed into a dedicated rotary wheel and pushed flat onto the worktable, where it is ground by the rotation of the sun gear.

[0040] Step S3: Based on the dimensional and structural parameters required for the internal hole grinding process, perform internal hole grinding on the cavity blank to grind the inner cavity of the cavity structure. The dimensional and structural parameters required for the internal hole grinding process include: the inner hole and chamfer dimensions of the cavity structure, as well as the roundness and surface roughness of the cavity structure.

[0041] Step S3 is preferably performed using a CNC internal grinding machine. For example... Figure 6-7As shown, the corresponding CNC internal grinding machine is mainly used for grinding the inner holes and end faces of bearing rings and similar parts, ensuring the accuracy of the inner holes and end faces, and meeting the processing needs of users for various parts. Before grinding the inner hole of the cavity blank, the cavity blank needs to be clamped: the cavity blank is placed into the hydraulic fixture held by the rotating disc, and the cavity blank is clamped by controlling the switch through the solenoid valve.

[0042] Step S4: Based on the finished product machining structural dimension parameters of the cavity structural component, simultaneously perform finished product machining on at least one cavity blank. For example, based on the outer shape of the cavity structural component and the dimensions of all holes in the cavity, machine the cavity blank to make its machining dimensions meet the technical requirements of the drawing.

[0043] Step S4 is preferably performed using a four-axis CNC milling machine. For example... Figure 8-9 As shown, the corresponding four-axis CNC milling and grinding machine refers to an existing vertical three-axis machining center with a fourth axis (such as a rotary axis or auxiliary axis) added. Specifically, the X / Y / Z axes are linear axes, and A / B / C are rotary axes. After the improvement, its machining accuracy is higher, and its efficiency is more than 10 times that of ordinary equipment. It is more suitable for parts with complex shapes and high precision. It integrates milling, boring, drilling, and grinding functions. Before machining the remaining dimensions of the outer shape and all holes in the inner cavity of the cavity blank, the cavity blank must first be clamped, such as... Figure 10 As shown: Multiple cavity blanks are loaded onto the tooling shaft at once and then locked (in a preferred embodiment, more than two sets of tooling shafts can be set to facilitate changing the clamping according to process requirements); then the tooling shaft containing the cavity blanks is installed onto the auxiliary shaft of the equipment as a whole. First, the tail end of the auxiliary shaft is held in place by a center or clamped by a chuck, and then clamped by a hydraulic chuck at the other end of the auxiliary shaft; thus, the clamping of multiple cavity blanks is completed.

[0044] Preferably, after each of the above processing steps is completed, online testing is required.

[0045] Preferably, the method for batch processing cavity structural components of the present invention further includes an online measurement step. For example, providing a self-inspection report.

[0046] Preferably, the method for batch processing cavity structural components of the present invention further includes an inspection step. For example, using relevant precision measuring instruments to determine whether the dimensions of the processed cavity structural components meet the technical requirements of the drawings.

[0047] Preferably, the method for batch processing cavity structural components of the present invention further includes a polishing step. For example, the polishing is then handed over to a polishing engineer for subsequent work.

[0048] Preferably, the method for batch processing cavity structural components of the present invention further includes a warehousing step. For example, handing it over to the warehouse manager and signing a receipt for safekeeping.

[0049] In a specific embodiment, the method for batch processing cavity structural components according to the present invention is used to process the cavity structural components: the material to be processed is a microcrystalline glass sheet with a thickness of 13±0.1mm; the finished processing dimensional structural parameters of the cavity structural components include the following parameters:

[0050] The cavity structure has a prismatic shape, with a cylindrical through-hole cavity between the upper and lower bottom surfaces, centered on the prism's centerline. Blind holes are provided between each sidewall and the cavity; the upper bottom surface of each blind hole penetrates the sidewall, while the lower bottom surface does not penetrate the cavity. A columnar connecting hole is provided between two adjacent blind holes.

[0051] Preferably, the blind holes include special blind holes. Apart from special blind holes, in the remaining blind holes, two blind holes spaced one blind hole apart have the same size, and adjacent blind holes have different sizes. Special blind holes and adjacent blind holes have the same bottom surface size but different column heights. The bottom surface size of the columnar connecting hole is the same as the smallest bottom surface size among adjacent blind holes. More preferably, except for special blind holes, for two adjacent blind holes, the sidewall of the blind hole with the larger bottom surface size is connected to the bottom surface of the blind hole with the smaller bottom surface size via an "I"-shaped columnar connecting hole; the bottom surface of the special blind hole is connected to the sidewall of the adjacent blind hole via an "R"-shaped columnar connecting hole.

[0052] Preferably, the cavity structure has an octagonal prism shape, the blind holes are cylindrical, and there are eight blind holes. The first, second, and third blind holes are adjacent to each other in sequence, and the fourth, fifth, sixth, seventh, and eighth blind holes are adjacent to each other in sequence. The fourth, sixth, and eighth blind holes have the same size, and the first, third, fifth, and seventh blind holes have the same size. The bottom dimensions of the second and third blind holes are the same and larger than those of the fourth blind hole. The column height of the third blind hole is greater than that of the fourth blind hole, and the column height of the fourth blind hole is greater than that of the second blind hole. The bottom dimension of the columnar connecting hole is the same as that of the fourth blind hole.

[0053] In a more preferred embodiment, such as Figure 11-12 As shown, the finished product processing dimensions and structural parameters of the cavity structure component processed by this invention include: the angular error of the six reference surfaces is better than 3″mm, N<0.4mm (aperture number), ▲N<0.04mm (aperture local error), and the surface finish is better than grade IV; the four patch surfaces are glossy adhesive surfaces with low aperture, N<0.2mm, ▲N<0.02mm, angular difference better than 2″mm, and the difference relative to the same reference surface is better than 2″mm, with a surface finish better than grade III; the chamfer of each edge, stress relief hole, and center hole is 0.2±0.1mm; the three electrode locations are indium-coated, with the area larger than the diameter; the inner wall of the cavity is chemically polished, and the actual value is the length corresponding to the center intersection of the capillary tubes; all dimensions are corrected and taken from a defined reference surface.

[0054] The beneficial effects of this invention are: high processing efficiency and low processing cost for batch processing of cavity structures.

[0055] The embodiments described above are merely preferred embodiments of the present invention. The terms "in one embodiment," "in another embodiment," "in yet another embodiment," or "in still another embodiment" used in this specification all refer to one or more of the same or different embodiments according to this disclosure. Ordinary variations and substitutions made by those skilled in the art within the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A method of batch processing a cavity structure member, characterized by, Including the following steps: Lay the workpiece flat on the workbench; Using the upper and lower planes of the workpiece to be processed as the upper and lower planes of the cavity blank, the workpiece to be processed is cut according to the cutting parameters to form a cavity blank with inner and outer contours at least more than 1 in number; Push at least one cavity blank onto the same worktable; Based on the dimensional and structural parameters required by the planar grinding process, the upper and lower planes of the cavity blanks, which have a quantity of at least more than 1, are subjected to planar grinding. Based on the dimensional and structural parameters required by the internal hole grinding process, the cavity blank is subjected to internal hole grinding. At least one cavity blank is loaded onto the same tooling shaft; based on the finished product machining structure dimension parameters of the cavity structural parts, at least one cavity blank is machined into a finished product at the same time; The cavity structure has a prism shape, with a cylindrical through-hole cavity between the upper and lower bottom surfaces, with the center line of the prism as the axis; a blind hole is provided between each side wall and the cavity, with the upper bottom surface of the blind hole penetrating the side wall and the lower bottom surface not penetrating the cavity, and a columnar connecting hole is provided between two adjacent blind holes.

2. The method for batch processing cavity structural parts according to claim 1, characterized in that, The material to be processed is selected based on the height and outer contour dimensions of the cavity structure.

3. The method for batch processing cavity structural parts according to claim 1, characterized in that, The cutting parameters include: the inner and outer contour dimensions of the cavity blank, and the number of cavity blanks.

4. The method for batch processing cavity structural parts according to claim 1, characterized in that, The required dimensional and structural parameters for the surface grinding process include: the height of the cavity structure, and the machining accuracy, roughness, flatness, and parallelism parameters of the cavity structure.

5. The method for batch processing cavity structural components according to claim 1, characterized in that, The internal hole grinding process requires dimensional and structural parameters including: the internal hole and chamfer dimensions of the cavity structure, as well as the roundness and surface roughness of the cavity structure.

6. The method for batch processing cavity structural parts according to claim 1, characterized in that, The finished product processing structure dimension parameters include: the dimension parameters of blind holes and through holes of the cavity structure component other than the inner cavity.

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